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38117157 = 313977363
BaseRepresentation
bin1001000101100…
…1111100100101
32122201112220120
42101121330211
534224222112
63440552153
7641663511
oct221317445
978645816
1038117157
111a574a91
1210922659
137b87840
1450c3141
15352de8c
hex2459f25

38117157 has 8 divisors (see below), whose sum is σ = 54732384. Its totient is φ = 23456688.

The previous prime is 38117153. The next prime is 38117207. The reversal of 38117157 is 75171183.

38117157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38117157 - 22 = 38117153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38117153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488643 + ... + 488720.

It is an arithmetic number, because the mean of its divisors is an integer number (6841548).

Almost surely, 238117157 is an apocalyptic number.

It is an amenable number.

38117157 is a deficient number, since it is larger than the sum of its proper divisors (16615227).

38117157 is a wasteful number, since it uses less digits than its factorization.

38117157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977379.

The product of its digits is 5880, while the sum is 33.

The square root of 38117157 is about 6173.9093773718. The cubic root of 38117157 is about 336.5426940641.

The spelling of 38117157 in words is "thirty-eight million, one hundred seventeen thousand, one hundred fifty-seven".

Divisors: 1 3 13 39 977363 2932089 12705719 38117157